Oil gauge



May l0, 1932. H. H. RUBERT 1,857,334

OIL GAUGE Filed Aug. 51, 1929 III 1l In llll rrma/YE Ys Patented May 10, 1932 STATES PATENT oFFlcE HAROLD H. RUBERT, F DETROIT, MICHIGAN, ASSIGNOR, BY MESNE ASSIGNMENTS, T0

GENERAL MOTORS CORPORATION, DELAWARE OF DETROIT`,. MICHIGAN, A CORPORATION' OF OIL GAUGE Application filed August 31, 1929. Serial Nol 389,787.

This invention relates to a new and' improved oil gauge and is an improvement upon certain structures disclosed in my co-pending application Serial No. 341,539 filed February 20, 1929, upon Oil gauge.

The main object of this invention is to provide an oil gauge shaped more or less in the form of a rod and in which the rod itself is so formed as to provide a means which will permit the easy withdrawal of the rod from the opening leading to the crank case and the easy insertion of the same therein but which at the time will insure that the rod will be held firmly in position when it is in place due to a three point bearing, the general outline of which conforms to the interior of the opening in the crank case.

Other objects and advantages relate to the details of the structure and the form thereof,

- all as will more fully appear from the following description taken in connection with the accompanying drawings in which:

Figure 1 is a side elevation of an oil gauge of this invention.

Figure 2 is a front elevationI of the saine.

Figure 3 is a section on line 3 3, Figure 1.

The oil gauge, as here shown, is formed of a single strip of sheet metal 1 and the upper end is bent into substantially circular form to provide a finger hold 2 J ust below the linger hold or grip 2 there is positioned upon the rod 1 a felt washer 5 on the upper surface of which there rests a metal washer 6 to maintain and support the felt plug which is adapted to close and seal the opening leading to the crank case through wh". ch the rod 1 eX- tends.

The rod 1 may be of any desired length and provided with any indicia for indicating the level of the oil in the crank case.

In order to form a section of this rod so that it will tightly grip the interior surface of the tube or conduit leading to the crank case, a portion of the length of the rod 1 just below the washer 5 is divided into three longitudinally extending sections, 7 8 and 9 separated by two spaced longitudinally extending slits through the metal of the rod 1 The two outside sections 8 and Q are then deilectedor offset to one'side of the plane of the gauge-portion 10- of the rod and the intermediate section 7- is deiiectedV or offset to the oppositeside of the plane of 4 portion 10 to produce three spaced bearings for the rod within the conduit.

Theessential feature of this invention, as distinguished from the disclosure of my prior application, consists in the fact that,

during deflection of sections 8 and Q or at some desired period, the sections are turned or bent, as shown perhaps best in Figure 3 at an angle of approximately 45 degrecs to the plane ofthe portion 10- at the point indicated by the line 3 3, Figure l. In this manner at the line 3 3, the vgeneral outlineof the three sections is made to conform substantially to the inner circumference of the tube through which the rod eX- tends into the crank case. By this angular disposition, a three point resilient bearing is formed which is more effective in holding the rod firmly within the tube or conduit in that, as before suggested, the three areas of bearing on the interior of the tube conform substantially to the interior circumference of the tube. n

Although I have shown and described a specific form of gauge and a particular angu lar disposition of the bearing portions thereof, I do not desire to restrict myselfito the form' of the gauge or to the number of sections into which it may be separated to form a bearing, the esesntial feature of this invention residing in the fact that the general outline of the bearing sections conforms generally with the interior of the tube within which it is designed to be positioned.

I claim 1. An oil gauge comprising an elongated stri of material having a limited portion thereof divided longitudinally into a plurality of sectionsy deflected with respect to the undivided portion of the strip and turned at an angle with respect to the plane of the strip so as to conform substantially to the inner circumference of a tube.

2. An oil gauge comprising an elongated metallic strip having a portion thereof divided into three longitudinally extending sections, the intermediate section being deflected to one side of the undivided portion of the strip and the two outsidek sections being deflected to the opposite side of the undivided portion of the strip and turned at an angle With respect to the plane of the strip.

3. An oil gauge having a resilient bearingk vportion vcomprising three Ystrips separated "from each other-intermediate their ends'and having their bearing surfaces conforming substantially to the interior circumferencev of a tube, said strips being integrally connected at their ends.

4. An oil gauge comprising an elongated ,metallic strip having a portion thereof dif vided into three longitudinally extendingsections, the intermediate section beingdeflected tovone side of theundivided portion of the .strip and the two outside sections being delectedv to the opposite side of theundivided portionof the'strip,rthe adjacent edges of such outside sections being turned outwardly'to bring suchsections to an angle of approxima-Lely 45 with respect to the plane of the strip.

In Witness whereof 7I have hereunto set my Yhand thislQth day of August, 1929.

HAROLD H. A RUBERT.

5o.AL 

